For questions specifically about issues with battery charging or power supply.

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0
votes
2answers
327 views

galaxy s2 charging cable doesn't fit galaxy tab 3

They both have micro usb ports but i thought I could use my current galaxy s2 cables with the tablet and they don't fit. Are there different sizes and how can you tell when getting a cable? Thanks
0
votes
3answers
176 views

How to check if my battery is OK?

I use my phone mainly for wifi use and I know it is a battery hog. However, what I would like to know is how much time it takes for the battery to charge. I guess it is supposed to take like 4 mins to ...
7
votes
2answers
2k views

How do I get rid of the “Battery fully charged, unplug charger” popup screen?

Every time my Note 2 gets fully charged, it beeps and (more annoyingly) turns the screen on to tell me to unplug it now that it's fully charged. I'm not going to unplug it overnight. I don't want ...
1
vote
0answers
77 views

Galaxy Nexus reboots on USB connection

I've had my Galaxy Nexus since April of 2012, and it's been fairly reliable ever since. However, for the past few weeks, I've noticed that it's rebooting whenever I plug it into my computer for ...
1
vote
1answer
147 views

How to charge a new Samsung Galaxy tab & what to expect

I am now trying to charge my new Samsung Galaxy tab since morning and it keeps flashing on me. No signs of it being charged. I am unable to switch it on. Please, for how long is it going to have to ...
0
votes
0answers
35 views

Mobile gets switched off when I start any application

When I browse the internet or open any application my phone gets switched off. But, if I browse the internet or open any application while charging it works. What might be the problem? The phone ...
10
votes
3answers
7k views

How frequently is it okay to let the battery discharge fully or as low as possible?

I know that atleast once or twice a month a full battery drain and then a 100% charge helps increase the battery life and also gives more accurate battery readings. I was wondering, how frequently is ...
0
votes
1answer
43 views

Get the chargin process intensity

I link my Samsung Galaxy S3 to the computer's USB port using a non-original power cord. I've found charging process very slow, so I would test the intensity whereby power cord supply energy to the ...
16
votes
4answers
15k views

Where is “Stay Awake” option in Ice Cream Sandwich on the Galaxy S3?

I just upgraded to the Samsung Galaxy S III (Ice Cream Sandwich) from the Motorola Droid Bionic (Gingerbread). On my Bionic, there was a "Stay Awake" check box that made it so my "Screen will never ...
0
votes
0answers
46 views

30% cpu usage when charger unpluged. When pluged in, cpu usage drops to 2%

I have checked by external debugger and it seems that "batteryservice:update start" runs 10 times per second. Other battery processes are running very often too, only with charger unpluged. It's brand ...
1
vote
2answers
13k views

Does charging a phone with another phone's charger affect it in any way? [duplicate]

I have a Samsung S4 and because its charger is short I charge it with a Samsung Wonder charger. I am afraid that it can damage the battery or something. Will it?
0
votes
0answers
102 views

Why the battery drain while plugged in doing nothing? (omap2_mcspi)

I usually leave my phone plugged in to the wall charger at night. This morning, to my surprise, the battery was not charged. According to the System Panel app, System Processes were taking almost ...
0
votes
1answer
460 views

Nexus 4 wont hold charge after screen and battery replacement

I've just replaced my broken screen and put a new battery into my nexus 4 following this you tube vid: http://www.youtube.com/watch?v=AZDAIgwbXk4. When I first plugged in the charger (1A generic usb ...
1
vote
0answers
473 views

USB charge in android 4.2.2

I have an android 4.2.2 phone. When I connect it to my desktop PC, it is not charging (Showing as charging and disconnected repeatedly). Checked by changing USB cable, connecting to different PC, ...
3
votes
1answer
247 views

Don't charge to 100% when always-on wall-plugged-in

I want to use a Google Nexus phone for an always-on wall-plugged-in WiFi tethering access station. It occurred to me that if I just do it like this, then I'm risking ruining the battery within a ...
8
votes
5answers
4k views

Is there a quick-fix for the Galaxy Nexus when it signals “charging” without beeing connected via USB?

My Galaxy Nexus goes into charging mode but when it isn't plugged in. The battery symbol then indicates a charging and when in suspend mode, the display turns on which drains battery rapidly. I am ...
2
votes
0answers
256 views

500 charge limit on wireless charger for Nexus 4 / 5 (QI)

I recently bought a QI compatible charger for my Nexus 5. On the box it states, that the wireless charges up to 500 times. I don't understand why the charger is only able to charge my phone 500 times. ...
2
votes
2answers
2k views

How to keep phone powered down while charging with ClockworkMod Touch Recovery?

In the course of setting up CyanogenMod 7.2 on my T-Mobile G2 (also known as the HTC Desire Z), I installed ClockworkMod Touch Recovery. My usual practice before that was to power off my phone and ...
2
votes
1answer
475 views

Battery charging indicator went crazy on my Samsung Duos S6802

While I was playing a game, my cellphone warned me that my battery went too low. I plugged the charger but it was like it didn't work (charger indicator didn't show the bolt icon). After several ...
4
votes
4answers
538 views

SD card unmounted when HTC Desire is being charged (even with a “wall charger”)

Whenever I plug in the charger into my HTC Desire (2.2) it unmounts the SD card. I can get around it when it's connected to a PC or other device via USB by selecting Charge Only again in the charge ...
0
votes
1answer
23 views

Google Tablet help need power

Just purchased this for Christmas, it will not charge or turn on, any suggestions. Have tired several different charger
0
votes
0answers
521 views

Battery and recharging suggested practices on Galaxy Note 3

Can someone please verify that the note 3 uses a Lithium Ion Battery? Does using the Note3 - for example making a call - while charging negatively impact it? My old flip-phone would heat up if I ...
4
votes
2answers
45k views

Samsung Galaxy Tab, charging technique through USB Cable

From Galaxy Tab is not being charged through USB Cable @Chris Stratton Tablets have larger batteries than phones and may be unable to sufficiently charge from the half amp limit of a USB port, ...
11
votes
6answers
3k views

Is it OK to swap batteries while phone is connected to wall charger?

It takes a few minutes to shut down and restart the phone, it would sometimes be handy to be able to swap batteries without shutting down (i.e. swap in a fully charged battery before going out). ...
0
votes
1answer
1k views

Why won't my S4 charge in the USB port

I am trying to charge my Galaxy S4 in my laptop but no matter which USB port it is in it will not charge. It is completely dead now. I am abroad and the adapter doesn't charge it either. HELP!
1
vote
2answers
3k views

Samsung Galaxy Nexus doesn't detect charger

This happened yesterday night first. My phone's battery was very slow, so I decided to charge it. It didn't start charging after plugging in the charger. Frustrated, I kept trying with different USB ...
0
votes
0answers
289 views

Stop device connected as host charging connected device

I am connecting a Nexus 10 to an Arduino board in host mode. The Arduino board has its own power supply, but is still drawing power from the tablet. This post suggests that this may happen if the ...
11
votes
4answers
9k views

How to make screen stay turned off when plugging charger?

When I plug charger into my phone with screen off, it always turns the screen back on. This is slightly annoying at night. Is it possible to configure android so that the screen stays off and charging ...
13
votes
3answers
5k views

Are Android chargers universal in terms of power (Voltage, amperage)?

I would like to buy a car charger, wall charger and USB cables for my Samsung Intercept. However, $20 for a charger seems expensive and I want to avoid getting ripped off. The Samsung Intercept Manual ...
2
votes
2answers
1k views

My Nexus 4 says it's charging but it's actually discharging

I plug in my Nexus 4 to a charger cable plugged into a wall outlet each night, and each morning I disconnect it. But sometimes during the day when it's not plugged in, like today, it says "Charging - ...
0
votes
1answer
171 views

Nexus 4 won't charge through laptop on low power

When my Nexus 4's battery is less than 5%, it won't charge while connected to my PC, but I can charge by plugging my Nexus 4 the wall adapter. I believe it is a hardware problem. Can you help me?
1
vote
4answers
272 views

Phone wakes when unplugged, how to keep it asleep?

I'm trying to charge my phone with an inconsistent power source. Unfortunately, the phone wakes up whenever power stops... Sometimes (often) using more power than is charged. Is there a way to stop ...
2
votes
4answers
4k views

Galaxy S 2 battery won't charge while being on

First of all, LOVE the Galaxy s2, even though it has some problems - which phone doesnt, right? I've had the Samsung Galaxy S2 for 2 months. It worked fine. Since a week my phone won't charge the ...
1
vote
0answers
208 views

Galaxy tab 10.1 charging with USB 3.0

When referring to this post, it seems like the Samsung Galaxy Tab should be able to charge while connected to a USB 3.0 port while running. I've noticed that when I have my Tablet running and plugged ...
0
votes
0answers
479 views

Samsung Galaxy Ch@t (GT-B5330) unable to charge

I have a Samsung Galaxy Ch@t (GT-B5330), but it don't charge. I was at my grandmother and when I wanted to charge it, it was vibrating (short) when I was back at home it didn't charge. I didn't try ...
1
vote
1answer
343 views

How to solve the short battery life with galaxy s4?

I bought Galaxy S4 in just half year. However I found some wrong with the bettery, my phone shutdown automatically recently with over 20% battery. I can only use the phone for two hours after my phone ...
3
votes
2answers
155 views

My Nexus 7 is dead, any suggestion?

My Nexus 7 died. I didn't see it happening. My son was playing, went to school and left it charging. At night it didn't turn on anymore. The screen is black. I've followed the Asus instructions. This ...
3
votes
1answer
8k views

How does fast-charge work?

How does Fast Charge work? Does it actually charge your device faster, and if so, is there a downside to using it?
2
votes
2answers
4k views

Is it safe to use phone while charging with portable powerbank?

I understand using phone while it is being charged by a normal charger is not advised. What about using phone while it is being charged by a portable charger (powerbank)? I own a HTC one and i was ...
0
votes
0answers
48 views

How do I decide what car charger I need to buy?

I am with Nexus 5 and finding it difficult to decide on what car charger or car dock with charger I need to buy. As there is no accessories from parent company (LG or Google) I not sure what charger ...
1
vote
2answers
3k views

Device Steadily Discharging While Plugged Into AC?

Question: My device (Galaxy Note 2 running the stable CyanogenMod release) is charging extremely slowly and discharges while it's plugged into AC power. What happened to cause this and what's ...
0
votes
2answers
76 views

When selecting an USB extension cable to extend power cord, what are the relevant considerations?

I want to use USB extension cords to extend the USB power cords for my Android device. What are the factors that could affect normal charging behavior? (Consider "normal charging behavior" to be ...
0
votes
0answers
188 views

USB connection issues with Nexus 4

I've installed some app from Google Play called "franco.Kernel updater", which had an option to enable "fast charging" (the app claims it provides a custom kernel that saves battery life). After I ...
9
votes
5answers
2k views

Will I damage my Android device by charging it using a generic microusb + car adapter?

I need a second charger and a car charger for my Evo 3D and the same for my wife's Nexus S, but I don't want to pay exorbitant prices for them. Will I fry or otherwise damage the devices using ...
0
votes
0answers
29 views

How to stop USB charging? [duplicate]

I'm a developer so i plug in my device for quite a long time, so i think it might affect my battery life. Is there any way to disable usb charging?
0
votes
1answer
189 views

Galaxy Nexus won't charge, will immediately reboot if turned off

Ran into a bizarre problem this morning. My Galaxy Nexus was plugged in, but not charging. Data transfer over USB seemed to work, but no charging would happen. Stranger still, if I turned the phone ...
0
votes
1answer
80 views

How to select a power supply for a given Android device

There are a variety of products on the market which provide a power supply for Android devices through the ubiquitous MicroUSB 2 port. These include adaptors for 12V "cigarette lighter" car DC power ...
1
vote
1answer
110 views

Is it safe charging a Galaxy Nexus through a USB 2A port? [duplicate]

This is a newbie question. While travelling, I need to recharge my Galaxy Nexus and my digital camera, both of which are meant to be charged through a micro-USB port, ie. 0,5A. To reduce charging ...
1
vote
0answers
539 views

sd card keeps getting unmounted when htc sensation is being charged

i have an htc sensation and it keeps saying that the sd card has been removed when its still in the phone. it will also say that the sd card has unmounted when it is charging What is going on?
1
vote
0answers
31 views

Samsung tab charging

Tab gt7500 battery went flat while downloading and now does not want to charge with supplied charger or via computer